在家裝工程中，管材如何選購？如何判斷管材的質量好壞？現在收羅匯聚了管材選購和辨別質量的秘籍，為您的愛家裝修提供幫助。     

                                                                       
  一、是“捏”硬度。                                                    

                                                                          
PP－R管具有相當的硬度，隨隨便便可以捏變形的管，肯定不是PP－R管。

                                                    
  二、是“聞”氣味。                                                 

                                                                
PP－R管主要材料是聚丙烯，好的管材沒有氣味，差的則有怪味，很可能是摻和了聚乙烯，而非聚丙烯。                                                            

                                                                        
  三、是“摸”質地。                                                         

一般來說，顆粒粗糙的很可能摻和了雜質。                                  

                                                        
  四、是“看”顏色。                                                   

                                                                  
PP－R管主要有白灰綠幾種，消費者往往認為白色才是的，其實顏色并非判斷質量好壞的標準。                                                       

                                                              
  五、是“燒”煙嗅味。                                       

                                                                   
原料中混合了回收塑料和其他雜質的PP－R管會冒黑煙，有刺鼻氣味。而好的材質燃燒后不僅不會冒黑煙、無氣味，燃燒后，熔出的液體依然很潔凈。                            

                                                                            
  六、是“砸”彈性。                                                        

                                                                          
好的PP－R管，“回彈性”好，容易砸碎自然不是好的PP－R管。但硬度強不等于彈性好，有些廠家通過加入過多碳酸鈣等雜質來提高硬度，怎么都砸不碎，用久了容易脆裂。